oldcomputernerd.com/md/Atari/entries/two-plus-two.md

Two-Plus-Two

10 ;
20 ;ADDNRS.SRC
30 ;
40        *=$0600
50 ;
60        CLD
70 ADDNRS CLC
80        LDA #2
90        ADC #2
100       STA $CB
110       RTS
120       .END